Hollow Acrylic PrismEquilateral Classroom Set of 5

Add various fluids to this hollow acrylic prism to study diffraction and disbursion. Comes with funnel and stopper for easy use and cleanup. 

• Equilateral 
• Sides: 1.8 in. (45mm)
• One hole for adding fluids to study defraction and dispersion
• Includes funnel and stopper